What was found
DURING TAKEOFF ROLL, CREW NOTICED NO AIRSPEED INFORMATION ON THE NR 1 PRIMARY FLIGHT DISPLAY. THERE WERE NO ASSOCIATED WARNINGS OR ECAM MESSAGES. THE TAKEOFF WAS ABORTED AT 100 KTS. DURING THE REJECTED TAKEOFF, THE AIRSPEED INDICATION ON THE NR 1 PRIMARY FLIGHT DISPLAY RETURNED AND MATCHED THAT OF THE NR 2 PRIMARY FLIGHT DISPLAY. CREW WAITED APPROXIMATELY 20 MINUTES TO COOL THE BRAKES AND THEIR SUBSEQUENT INVESTIGATION REVEALED NO FAULTS. THE FOLLOWING TAKEOFF WAS NORMAL. NO MAINTENANCE LOG WAS INITIATED.